Breast cancer metastasis to the bone: mechanisms of bone loss.

Breast cancer metastasis to the bone: mechanisms of bone loss.
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DOI:
10.1186/bcr2781
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发表时间:
2010
期刊:
Breast cancer research : BCR
影响因子:
--
通讯作者:
Mastro AM
Mastro AM
中科院分区:
其他
文献类型:
--
作者:
Chen YC;Sosnoski DM;Mastro AM

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乳腺癌经常转移到骨骼,干扰正常的骨骼重塑过程,导致骨骼退化。溶骨性损伤是破骨细胞活性的最终结果,但破骨细胞的分化和激活是由成骨细胞产生RANKL(核因子κB受体激活剂)和几种破骨细胞因子介导的。成骨细胞本身受到癌细胞的负面影响,表现为细胞凋亡率的增加和新骨形成所需蛋白质的减少。因此,骨丢失是由于破骨细胞的激活增加和成骨细胞的抑制所致。本文综述了骨转移溶骨机制的研究现状,并对目前的治疗方法进行了讨论。
Breast cancer frequently metastasizes to the skeleton, interrupting the normal bone remodeling process and causing bone degradation. Osteolytic lesions are the end result of osteoclast activity; however, osteoclast differentiation and activation are mediated by osteoblast production of RANKL (receptor activator for NFκB ligand) and several osteoclastogenic cytokines. Osteoblasts themselves are negatively affected by cancer cells as evidenced by an increase in apoptosis and a decrease in proteins required for new bone formation. Thus, bone loss is due to both increased activation of osteoclasts and suppression of osteoblasts. This review summarizes the current understanding of the osteolytic mechanisms of bone metastases, including a discussion of current therapies.
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